diff --git a/public/site/blueprints/files/pdf.yml b/public/site/blueprints/files/pdf.yml
index e2e5cd5..acc855b 100644
--- a/public/site/blueprints/files/pdf.yml
+++ b/public/site/blueprints/files/pdf.yml
@@ -1,6 +1,7 @@
 title: PDF
 
 accept:
+  mime: application/pdf
   extension: pdf
 focus: false
 fields: